From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jamie Lokier Subject: Re: [Qemu-devel] Re: [PATCH] Add VirtIO Frame Buffer Support Date: Fri, 6 Nov 2009 02:39:15 +0000 Message-ID: <20091106023915.GO21630@shareable.org> References: <1257199759-2941-1-git-send-email-agraf@suse.de> <4AEFCBED.50804@redhat.com> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <4AEFCBED.50804@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Avi Kivity Cc: Alexander Graf , linux-fbdev-devel@lists.sourceforge.net, qemu-devel@nongnu.org, kvm@vger.kernel.org Avi Kivity wrote: > On 11/03/2009 12:09 AM, Alexander Graf wrote: > >When we want to create a full VirtIO based machine, we're still missing > >graphics output. Fortunately, Linux provides us with most of the frameworks > >to render text and everything, we only need to implement a transport. > > > >So this is a frame buffer backend written for VirtIO. Using this and my > >patch to qemu, you can use paravirtualized graphics. > > What does this do that cirrus and/or vmware-vga don't? *This* virtio-fb doesn't, but one feature I think a lot of users (including me) would like is: Option to resize the guest desktop when the host desktop / host window / VNC client resizes. Tell the guest to provide multiple desktops when the host has multiple desktops, so things like twin monitors work nicely with guests. Relay EDID/Xrandr information and updates from host to guest, and generally handle hotplugging host monitors nicely. Are there any real hardware standards worth emulating which do that? -- Jamie From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1N6EjU-0003Hf-4Q for qemu-devel@nongnu.org; Thu, 05 Nov 2009 21:39:24 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1N6EjP-0003EG-Hc for qemu-devel@nongnu.org; Thu, 05 Nov 2009 21:39:23 -0500 Received: from [199.232.76.173] (port=52733 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1N6EjP-0003E6-DD for qemu-devel@nongnu.org; Thu, 05 Nov 2009 21:39:19 -0500 Received: from mail2.shareable.org ([80.68.89.115]:36893) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1N6EjO-0004uj-WD for qemu-devel@nongnu.org; Thu, 05 Nov 2009 21:39:19 -0500 Date: Fri, 6 Nov 2009 02:39:15 +0000 Subject: Re: [Qemu-devel] Re: [PATCH] Add VirtIO Frame Buffer Support Message-ID: <20091106023915.GO21630@shareable.org> References: <1257199759-2941-1-git-send-email-agraf@suse.de> <4AEFCBED.50804@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4AEFCBED.50804@redhat.com> From: Jamie Lokier List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Avi Kivity Cc: linux-fbdev-devel@lists.sourceforge.net, Alexander Graf , kvm@vger.kernel.org, qemu-devel@nongnu.org Avi Kivity wrote: > On 11/03/2009 12:09 AM, Alexander Graf wrote: > >When we want to create a full VirtIO based machine, we're still missing > >graphics output. Fortunately, Linux provides us with most of the frameworks > >to render text and everything, we only need to implement a transport. > > > >So this is a frame buffer backend written for VirtIO. Using this and my > >patch to qemu, you can use paravirtualized graphics. > > What does this do that cirrus and/or vmware-vga don't? *This* virtio-fb doesn't, but one feature I think a lot of users (including me) would like is: Option to resize the guest desktop when the host desktop / host window / VNC client resizes. Tell the guest to provide multiple desktops when the host has multiple desktops, so things like twin monitors work nicely with guests. Relay EDID/Xrandr information and updates from host to guest, and generally handle hotplugging host monitors nicely. Are there any real hardware standards worth emulating which do that? -- Jamie